/Engine/Source/Editor/UMGEditor/Public/WidgetBlueprintEditorUtils.h
static void FindAllAncestorNamedSlotHostWidgetsForContent ( [TArray](API\Runtime\Core\Containers\TArray)< [FWidgetReference](API\Editor\UMGEditor\FWidgetReference) > & OutSlotHostWidgets, [UWidget](API\Runtime\UMG\Components\UWidget) * WidgetTemplate, [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FWidgetBlueprintEditor](API\Editor\UMGEditor\FWidgetBlueprintEditor) > BlueprintEditor )